Harvester thrasher



R. B. HITCHCOCK HARVESTER THRASHER Filed Feb. 13, 1919 3 Sheets-Sheet;

Oct 25 1927' B. HlTcl-ICCK HARVESTER THRASHER Filed Feb. 13, 1919 5 Sheets-Sheet 5 Patented Oct. 25, 1927'.

U mrt-.o PAT ENT .ofFFi um; n. HITCHCOCK, or Hoosier; FALLS, NEW yYom; Assreivoia iro Y1Nfr nrvnArrioitAL `HARVESTER COMPANY, A CORPORATION oF NEW JERSEY.

.HARVEST-E3 THRASHER. I

' Application med ,February Y13, 1919. serriainaozravca.

This invention relates to harvester thrashers and machines of like character.

In machines of this .type, as is wellknown, Vthe cut grain falls on the Vplatform apron and is conveyed to one end thereof and then is yusually carried rearwardly and elevated. Inorder yto `enable the operator to control ,the amount of straw out, theplatform 'is made vertically adjustable yor tiltable, andv it is necessary for the successful operation Vof the machine thatA the various conveyers, such for instance as the rearwardly moving and elevating conveyers, be maintained in cooperative relationship lin all `positions of,

adjustment.

The present invention has vfor vits object,

tliere'formto providefa construction in which 4the various conveyers will be always main- .tained in operative relationship to deliver Ythe `grain froinone to the kother and also in which the conveyers delivering'the grain to Athe lthrashing,mechanism will always be platformapron, the cross apron delivering.A `the grain tothe elevating conveyers, which in turn vdeliver it to the thrashing cylinder.

The elevating conveyers are `so connected to the frame ofthe machine lthat lthe de livery ends thereof yare always maintained .in such positionthat thegrain will be delivered tot-he thrashing inechanisin,.and the connectionbetween. the platformy andftheelevating conveyers and between the cross con-v veyer' on the lplatform and fthe elevating conveyers, is Asuch .that the grain -will be deliveredfrom one tothe other iny allpo- ,sitions of ladjustment ofthe platform.

Inthedrawings, wherein one embodiment of the inventionl is .illustrated- Figure 1 shows a top plan view of the frame ofthemachine; y l

Fig. 2 yisa sideelevation partly-insection of the construction shown.inFi-g. 1;

Fig. 3 -is an enlargedddetail .view Showing ...the pivotal connection between. the platform .iframe and ethelframe for the elevatingconi veyers; and y i,

Fig. 4 isa detail-plan view of the constructionshown iniFig. 3.

Referring yi'irst to Figure 1, wherein .the framer of -.the vmachine is` shown, -the main frame `1();of the machine comprises longitudinal membersll and 12 connect-ed 7at their .front ends to forwardly converging truck frame members -13and 14 .which are supported at Ytheir frontends by truck wheels 15. The .frame member 12-has V.secured thereto a grainwardly extending frame member' 16 which is secured at its opposite end to frame members .17 and'18. The thrashing the members 12, 16 and -The mainvaxle 18 ofthe machine is. supported in suitable Y,journals carried bythe longitudinal frame members and iscarried yby .a main wheel 19 and a.. transport or grain wheel. 20. The

mechanism andr the rearendsof the frame f Vmembers for thefeeding elevators are lsup- .portedfbythe rectangular frame formed by t platform frame is hingedly connected to the v main frame or -tofthe axlewhich forms la part thereof, and comprises the, usual transverse platform members 21 yand 22the platform frame tformed .by thesefmembers Abeing' pivotally connected to lsuitable sleevesvcarried on the main yaxleby means of members 23, -24 and 25. The'platform.members 21 and 22 ,are connected by members y2,6, 27 and 2,8 which Aextend `across the platform,

ythe member 28 extending,rearwardly andbeing` `secured vto member 25. The front platformframemember 21 `extends stubblewardly from the member 28, as shown. at`29, the stubbleward end 29 beingk lpivotally cronnected by means of. a longitudinal Ibar 30 -to a sleeve 31 carried bythemainaxle.

As illustrated in .Figure 1,` the frameimembers 25, 2S and 30 extend underneath Athe main frame of the'machine formed by the LAmembers 16 and 17. .Referring to'Figure2,

it will =be seen that the rectangularwframe formedby themembers 10, land 17 ofthe main frame of the machine, i has secured.

thereto vertical frame memberszt32, v33 and 34, the ,members 33 and Blb'ein-g connected attheir upper ends by a longitudinal frame member 35, thefront end of the member 35 being' connected .with the ,upper end. of the longitudinally extending shafting geared machine.

as shown at 41 to a shaft 42 which is operatively connected in any suitable manner to gearing carried by the main wheel 19 of the This shafting is made longitudinally extensible andalso is connected to the i `roller 39 by means of a `universal oint in ory veyer 43 supported at itsfront end by a roller' der that the platform conveyer 38 may be driven in all positions of the adjustment of the platform. The conveyer 38 delivers the grain at its stubbleward end toa cross con- 44 carried by journal horesy 45 secured to the' extension 29 of the platform frame member 21. The cross conveyer has its rear end supported by a roller 4G carried by a shaft 47 which in turn is mounted in journal members 48 carried `in journal boXes 49 formed at the front end of castings 50 se-V cured to the frame "members 51 which supj port the elevating` conveyers 52 andA 5 3. that receive the grain from thecross conveyer and deliver i't to the thrashing cylinder .i The framemembers 51 are pivotallymounted on `the shaft 54 journaled inthe bearings 55',

carried by the castings 54 secured to each side of the thrashing cylinder frame, the shaft 54 carrying a roller 55 which supports the up-V `per end of the conveyer 52, the lower end of said conveyer being supported by a roller 56. The conveyer 53 is supported at its upper end bya roller 57 and at its lower end byf a roller 58 `carried by a shaft 59 jour# naled in'bearings carried by the frame members 51, the shaft 59 Iextending through the brackets or castings 50. The castings 54 are further provided with open channels to receive theshaft, the latter being held firm from displacement by pins or bolts 54. By providing' these castings 54', fas shown, the frame member51 can be quickly detached from the cylinder frame when access to the thrashing cylinder is required, and as the boxes and castings 50 are constructed in Aa similar manner itwill be seen that the frames carrying the conveyor 43, and the elevating conveyors 52 and 53, canfbe readily taken off when necessary by merely removingthe bolts, and lifting the shaftswfromfr the frame out of the open channel. The conveyors 52 and 53 are drivenfroma Vgear 37 only part of which is fshown) carried by the thrashing cylinder shaft. This gear drives `a pinion mounted on the shaft i .54, having the roller 55 thereon. This pinion co-operates with the pinionV 57 secured to the shaft of the roller 57. The cross-conveyor 43 is driven by asproclet and chain connection 48 and 47, betweenthe shafts 54 and 47.

`Suitable lever mechanismris providedA for vertically` adjustingthe harvester platform,

and in the present instance the platform is adjusted by means of a bell crank lever 60 pivoted at 61 to frame member 14, one arm of the bell-crank lever carrying a pawl releas-` ing member G3 connected by a linke-1, lever 54 and link 65, to a `pawl @5^ which is adapt-` ed to enter one of aseriesof apertures (i5 formed' in sector 67'1suitably supported on Vthe vframe member `14 and seat supporting member 6G/J The other arm ofthe'ball crank lever is extended as shown at 68, the rear end of the lextension 68 being connected by means of a link 69 `to the frontmember 21 of the platform frame.` Y j j j Y j It will bercadily ,seen that the operator by releasing the pawland swinging the bell cranl; lever about its pivot 6l will swing tlieplatform vertically aboutr the pivotal i connections of the frame members 23, 24, 25,

and 30 on the main axle of the .frame 1 In order to `:assist the operator in tilting i the platform 7 frame suitable counterbalancing springs 70 aresecured at one end tothe platform, and atits opposite end toa-vertical frame member 71carried` by the `mainl frame ofthe machine.` i j A brief description of the-operation of the constructionabovefdescribed will Vnow beV given, and for a clear understanding of the construction and operation -it should be borne in mind that `a portion of the -`frame "of the machine is rigidly mounted, and aV portion of the frame istiltably mounted, the platform frame being vtiltable as above described. Y

lVhen theoperator desires .to adjust the platform frame in order to cut more or less straw, the bell crank lever 60 is swung about its pivot and th-eplatform is swung on the frame members 23, 24,V 25 and 30. As the platform frame is so adjusted theelevator frame members 51 will swing on the pivotV .i

54 carried by.` the main frame,and the cross.

conveyer 43 will swing on the pivot'47 f formed on the castings `50` secured to the frame members 51, and on the forward pivot 44 formed on the casting 45. Thus it* will be seen that there a "jacleknife action between theelevating conveyers and the cross conveyer, the delivery end of the cross conveyer which is Asupported on the pivot 47 being always maintained in cooperative relation with the receiving :end ofthe conveyers 52 and 53, It will also be seen that the `delivery ends of theconveyers' 52 and 53 are always maintained` in such a position that these conveyers will deliver the grain to the thrashing cylinder 37.

should be understood that the invention is capable of modification, and that modifications maybe made Without departing from the spirit .and scope of the invention as eX- pressed in the following claims.

I claim: Y

l. In a harvester thrasher, a main frame, a. thrasher thereon, a vertically adjustable platform pivoted to said frame, a conveyer thereon, an elevator frame pivoted tosaid thrasher, a conveyer therefor, and a conveyery pivotally connected to the platform and elevator frame, whereby a cooperativ-e relationship between the delivery end of the platform conveyer and the last mentioned conveyer Will be maintained in all positions of adjustment of Said platform.

2. In a harvester thrasher, a main frame, a thrasher thereon, a vertically adjustable platform carri-ed by the fram-e and having a longitudinally extending conveyer thereon, a cross conveyer carried by said platform and receiving grain from the platform conveyer, and an elevator including a conveyer receiving grain from the cross conveyer and discharging into the thrasher, said cross conveyer being pivotally connected to said platform and to the elevator.

3. In a harvester, an adjustable platform, a conveyer mounted in said platform, acrossconveyer, an elevator conveyer, and means for adjusting all of vsaid conveyers'vvith respect to each other when said adjusted. v

t. In a harvester, an adjustable platform,

a conv-eyer mounted in said platform, a

cross-conveyer, an elevator conveyer,k 'and pivotal connections between each yconveyer for permitting adjustment of all of said conveyers in co-operative relation With respect to each other When said platform is adjusted.

.v In a harvester, an adjustable platform, a conveyer mounted in said platform, acrossconv-eyer mounted for pivotal adjustment with respect tosaid platform, an elevator conveyer, and means for adjusting all of said conveyers when said platform is ad` justed.

6. In a harvester thrasher, a main frame, a thrasher thereon, an adjustable platform carried by the frame, a conveyor on the platform, a cross conveyer pivoted to the platform, an elevator frame including a conveyer Vpivoted to the cross conveyer and tothe thrasher, and means for adjusting all of said conv-eyers with respect to each other.

In testimony whereof I affix my signature. i

REX B. HITCHCOCK.

platform is 

